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Finding the Fourth Proportional to 118,763.11, 163,889.94 and 67,774.90

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Solution

The fourth proportional to 118,763.11, 163,889.94 and 67,774.90 is: 93,527.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,763.11 : 163,889.94 = 67,774.90 : x
  2. Step 2: Convert to fraction form
    118,763.11/163,889.94 = 67,774.90/x
  3. Step 3: Cross multiply
    118,763.11x = 163,889.94 × 67,774.90
  4. Step 4: Simplify right side
    118,763.11x = 11,107,624,294.51
  5. Step 5: Solve for x
    x = 11,107,624,294.51/118,763.11
  6. Step 6: Final answer
    x = 93,527.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.